It is hard to have global regulations for bitcoin and cryptocurrencies because not all countries accept it. Like china banned them altogether. Other countries also dont have regulations in place. Hopefully we see more adoption and regulations in future.
I really think that if cryptocurrencies becomes really big all countries around the world are going to try to create some kind of regulation that will benefit them in a way, however it is likely that we are going to see some countries deciding that they are not going to go along with it and will decide to accept cryptocurrencies and it's likely that many people that have made a fortune with cryptocurrencies will decide to live there.